How severe is CVE-2018-16620?

CVE-2018-16620 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-16620 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-16620?

CVE-2018-16620 affects Sonatype Nexus Repository Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-16620?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-16620 published?

CVE-2018-16620 was published on 2018-11-15 and last updated on 2026-06-17.

CVE-2018-16620

CVE-2018-16620 is a high-severity vulnerability in Sonatype Nexus Repository Manager with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Sonatype Nexus Repository Manager
Published: 2018-11-15
Last modified: 2026-06-17

Description

Sonatype Nexus Repository Manager before 3.14 has Incorrect Access Control.

Frequently asked questions

What is CVE-2018-16620?: Sonatype Nexus Repository Manager before 3.14 has Incorrect Access Control.
How severe is CVE-2018-16620?: CVE-2018-16620 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-16620 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-16620?: CVE-2018-16620 affects Sonatype Nexus Repository Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-16620?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-16620 published?: CVE-2018-16620 was published on 2018-11-15 and last updated on 2026-06-17.

References

https://support.sonatype.com/hc/en-us/articles/360010789453-CVE-2018-16620-Nexus-Repository-Manager-Missing-Access-Controls-October-17-2018

Affected products (1)

cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:*

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